export type GameLibraryGame = 't5' | 't6';
export type GameLibraryState = 'importing' | 'ready' | 'failed';
export type LibraryCacheState = 'missing' | 'downloading' | 'verifying' | 'ready' | 'failed' | 'outdated';

export interface GameFileEntry { path: string; size: number; sha256: string }
export interface HostLibraryCache {
    hostId: string; libraryVersionId: string; status: LibraryCacheState;
    bytesDownloaded: number; bytesTotal: number; manifestSha256: string | null;
    error: string | null; updatedAt: string; operationId: string | null;
}
export interface GameLibraryVersion {
    id: string; libraryId: string; game: GameLibraryGame; version: string;
    description: string; state: GameLibraryState; sizeBytes: number;
    fileCount: number; manifestSha256: string | null; files: GameFileEntry[];
    createdAt: string; publishedAt: string | null; storageLocation: string;
    sourceHostId: string | null; sourceVolume: string | null; error: string | null; operationId: string | null;
    caches: HostLibraryCache[];
}
export interface GameLibrary {
    id: string; name: string; game: GameLibraryGame; description: string;
    createdAt: string; versions: GameLibraryVersion[];
}

export function formatGameBytes(bytes: number): string {
    if (!bytes) return '0 B';
    const unit = Math.min(4, Math.floor(Math.log(bytes) / Math.log(1024)));
    return `${(bytes / 1024 ** unit).toFixed(unit ? 1 : 0)} ${['B', 'KiB', 'MiB', 'GiB', 'TiB'][unit]}`;
}